FR2796461B1 - METHOD AND DEVICE FOR OPTICAL DETECTION AND MEASUREMENT OF THE QUANTITY OF OPAQUE PARTICLES PRESENT IN A GAS - Google Patents

METHOD AND DEVICE FOR OPTICAL DETECTION AND MEASUREMENT OF THE QUANTITY OF OPAQUE PARTICLES PRESENT IN A GAS

Info

Publication number
FR2796461B1
FR2796461B1 FR9909202A FR9909202A FR2796461B1 FR 2796461 B1 FR2796461 B1 FR 2796461B1 FR 9909202 A FR9909202 A FR 9909202A FR 9909202 A FR9909202 A FR 9909202A FR 2796461 B1 FR2796461 B1 FR 2796461B1
Authority
FR
France
Prior art keywords
measurement
gas
optical detection
particles present
opaque particles
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
FR9909202A
Other languages
French (fr)
Other versions
FR2796461A1 (en
Inventor
Frederic Bury
Bernard Lafont
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Entreprise Generale de Chauffage Industriel Pillard SA
Original Assignee
Entreprise Generale de Chauffage Industriel Pillard SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Entreprise Generale de Chauffage Industriel Pillard SA filed Critical Entreprise Generale de Chauffage Industriel Pillard SA
Priority to FR9909202A priority Critical patent/FR2796461B1/en
Priority to EP00430025A priority patent/EP1069425A1/en
Publication of FR2796461A1 publication Critical patent/FR2796461A1/en
Application granted granted Critical
Publication of FR2796461B1 publication Critical patent/FR2796461B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/15—Preventing contamination of the components of the optical system or obstruction of the light path
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
    • G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/15—Preventing contamination of the components of the optical system or obstruction of the light path
    • G01N2021/151—Gas blown

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
FR9909202A 1999-07-12 1999-07-12 METHOD AND DEVICE FOR OPTICAL DETECTION AND MEASUREMENT OF THE QUANTITY OF OPAQUE PARTICLES PRESENT IN A GAS Expired - Fee Related FR2796461B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR9909202A FR2796461B1 (en) 1999-07-12 1999-07-12 METHOD AND DEVICE FOR OPTICAL DETECTION AND MEASUREMENT OF THE QUANTITY OF OPAQUE PARTICLES PRESENT IN A GAS
EP00430025A EP1069425A1 (en) 1999-07-12 2000-07-07 Method and device for detecting and measuring optically the quantity of opaque particles which are present in a gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9909202A FR2796461B1 (en) 1999-07-12 1999-07-12 METHOD AND DEVICE FOR OPTICAL DETECTION AND MEASUREMENT OF THE QUANTITY OF OPAQUE PARTICLES PRESENT IN A GAS

Publications (2)

Publication Number Publication Date
FR2796461A1 FR2796461A1 (en) 2001-01-19
FR2796461B1 true FR2796461B1 (en) 2001-10-26

Family

ID=9548149

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9909202A Expired - Fee Related FR2796461B1 (en) 1999-07-12 1999-07-12 METHOD AND DEVICE FOR OPTICAL DETECTION AND MEASUREMENT OF THE QUANTITY OF OPAQUE PARTICLES PRESENT IN A GAS

Country Status (2)

Country Link
EP (1) EP1069425A1 (en)
FR (1) FR2796461B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3088865A1 (en) * 2015-04-28 2016-11-02 Bayer Technology Services GmbH Measurement connection and tube assembly comprising such a measurement connection
CN111982246B (en) * 2020-07-30 2023-01-10 济宁市计量测试所 Small gas flowmeter verification and calibration device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2036476A5 (en) * 1969-03-13 1970-12-24 Guigues Frederic
FR2389889B1 (en) * 1977-05-05 1981-06-12 Sofrance Sa
JPS58108512A (en) * 1981-12-23 1983-06-28 Hitachi Cable Ltd Dust proofing device for tip part of image guide
DE3321028A1 (en) * 1982-06-17 1983-12-22 Smiths Industries Public Ltd. Co., London OPTICAL COMPONENT
US4786188A (en) * 1986-02-27 1988-11-22 Rosemont Inc. Purge air system for a combustion instrument
DE4426088A1 (en) * 1993-08-21 1995-03-02 Durag Ind Elektronik Gmbh & Co Scavenging-air unit for an instrument for measuring particulate concentration and smoke number (smoke meter)

Also Published As

Publication number Publication date
FR2796461A1 (en) 2001-01-19
EP1069425A1 (en) 2001-01-17

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20110331